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Mepiquat chloride-containing controlled release urea special for cotton and preparation method thereof

A technology for controlled release of urea and mepamine, which is applied in urea compound fertilizers, applications, organic fertilizers, etc., can solve the problems of poor pertinence of controlled release urea, improve nitrogen utilization rate, improve stress resistance and survival rate, The effect of reducing shedding

Inactive Publication Date: 2018-11-20
山东金沂蒙生态肥业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor pertinence of the current controlled-release urea, the present invention provides a special controlled-release urea for cotton. At the same time, in order to solve the labor problem of top dressing, the present invention also provides a preparation method for the special controlled-release urea for cotton, which has low production cost, Simple process

Method used

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  • Mepiquat chloride-containing controlled release urea special for cotton and preparation method thereof
  • Mepiquat chloride-containing controlled release urea special for cotton and preparation method thereof
  • Mepiquat chloride-containing controlled release urea special for cotton and preparation method thereof

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Embodiment 1

[0020] In the embodiment of the present invention, a kind of controlled-release urea for cotton containing benzedramine uses urea particles and benzedramine as the core material, and epoxy resin and curing agent as the outer coating material. The urea particles include urea and auxiliary Materials Borax, polyaspartic acid and potassium fulvic acid.

[0021] The present invention provides the preparation method of the cotton-specific controlled-release urea containing benzyl amine, comprising the following steps:

[0022] (1) Pass 19kg of urea, 0.2kg of borax, 0.4kg of polyaspartic acid, and 0.4kg of potassium fulvic acid through a 60-mesh sieve. 5%, place the sieved urea, borax, polyaspartic acid, and potassium fulvic acid in a disc granulator, fully mix the materials evenly at a speed of 20 rpm, and obtain the mixed materials;

[0023] (2) Dissolve 100 g of benzedramine into 1900 ml of distilled water to make an aqueous solution containing 5% of benzedramine, use this as a b...

Embodiment 2

[0028] In the embodiment of the present invention, a kind of controlled-release urea for cotton containing benzedramine uses urea particles and benzedramine as the core material, and epoxy resin and curing agent as the outer coating material. The urea particles include urea and auxiliary Materials Borax, polyaspartic acid and potassium fulvic acid.

[0029] The present invention provides the preparation method of the cotton-specific controlled-release urea containing benzyl amine, comprising the following steps:

[0030] (1) Pass 18 kg of urea, 0.5 kg of borax, 0.7 kg of polyaspartic acid, and 0.8 kg of potassium fulvic acid through a 60-mesh sieve, and the auxiliary materials borax, polyaspartic acid, and fulvic acid account for 10% of the weight ratio of the materials. %, place the sieved urea, borax, polyaspartic acid, and potassium fulvic acid in a disc granulator, and fully mix the uniform material at a speed of 20 rpm to obtain a mixed material;

[0031] (2) Dissolve 15...

Embodiment 3

[0036] In the embodiment of the present invention, a kind of controlled-release urea for cotton containing benzedramine uses urea particles and benzedramine as the core material, and epoxy resin and curing agent as the outer coating material. The urea particles include urea and auxiliary Materials Borax, polyaspartic acid and potassium fulvic acid;

[0037] The present invention provides the preparation method of the cotton-specific controlled-release urea containing benzyl amine, comprising the following steps:

[0038] (1) Pass 17.4 kg urea, 0.8 kg borax, 0.8 kg polyaspartic acid, and 1 kg potassium fulvic acid through a 60-mesh sieve, and the auxiliary materials borax, polyaspartic acid, and potassium fulvic acid account for 13%, urea after sieving, borax, polyaspartic acid, potassium fulvic acid are placed in the disc granulator, fully mix the homogeneous material with the rotating speed of 20 rpm, obtain the mixed material;

[0039] (2) Dissolve 180 g of benzyl amine int...

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Abstract

The invention relates to mepiquat chloride-containing controlled release urea special for cotton and a preparation method thereof, and belongs to the technical field of controlled release fertilizer.The fertilizer disclosed by the invention takes urea particles and mepiquat chloride as kernel materials and takes epoxy resin and a curing agent as outer-layer coating materials; the urea particles comprise urea and auxiliary materials such as borax, polyaspartic acid and potassium fulvic acid. By use of the nutrient release feature of epoxy resin-coated fertilizer, the mepiquat chloride-containing controlled release urea special for the cotton is prepared according to a nitrogen demand rule and the indeterminate growth habit of the cotton. The nitrogen content of the mepiquat chloride-containing controlled release urea special for the cotton is 36 to 41 percent, the mepiquat chloride content is 0.4 to 0.8 percent, and the release period is 3 to 5 months; after the fertilizer is applied at one time, nitrogen and mepiquat chloride can be accurately supplied according to a growth demand of the cotton, so that work of multi-time topdressing of nitrogen fertilizer and spraying of the mepiquat chloride is avoided; furthermore, the mepiquat chloride has the effects of reducing nitrogen loss, enhancing the stress resistance of the cotton, improving the ecological environment and increasing the yield of the cotton.

Description

technical field [0001] The invention relates to a special controlled-release urea for cotton containing benzylamine and a preparation method thereof, belonging to the technical field of controlled-release fertilizers. Background technique [0002] Cotton is an important strategic material related to the national economy and people's livelihood, and it is the largest economic crop in my country. Nitrogen affects cotton yield and quality, and rational application of nitrogen fertilizer is beneficial to adjust the "source-sink" relationship of cotton and increase cotton yield. However, in recent years, with the increase in the amount of chemical fertilizers and the improvement of arable land fertility, the effect of fertilizers on increasing production has decreased, and the nitrogen use efficiency is only 29.1-39.0%. Moreover, excessive application of available nitrogen fertilizers has caused serious ecological and environmental problems, such as leaching of nitrate nitrogen,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05C9/00C05G3/00C05G3/80C05G5/30C05G5/38C05D9/02C05F11/02
Inventor 耿计彪张超王学波卢晓峰李刚谢印江吴艳
Owner 山东金沂蒙生态肥业有限公司
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